US 421 over Mccamon cr.
Jackson County, Kentucky · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 421 over Mccamon cr. in Jackson County, Kentucky, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2008, making it 17 years old at the 2025 inventory.
- It carries about 2,754 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 15 of the 55 inventoried bridges in Jackson County rated good (27.3%); 5 (9.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated February 2022, on a 48-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (37.40083, -83.94889)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 41 ft |
| Location | Gray Hawk Jackson Co. |
| NBI structure number | 055B00044N |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2022 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kentucky department of transportation.
Busiest bridges in Jackson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| _US-421 over _pigeon Roost Creek | 2017 | 5,507 | Good |
| US-421 over Indian Creek | 1927 | 4,470 | Fair |
| Ky-30 over Moores Creek | 2010 | 4,340 | Good |
| US-421 over Sand Lick Creek | 1928 | 3,123 | Fair |
| Ky 30 over Moores road. | 2012 | 2,771 | Good |
| Ky-290 over Mill Creek | 1942 | 2,329 | Fair |
All bridges nearby: Jackson County, KY bridge conditions · every bridge in Jackson County · Kentucky bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.